Deskstar T7K250 Hard Disk Drive Specification
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6.4 Interface logic signal levels(PATA model)
The interface logic signals have the following electrical specifications:
6.5 Signal definition (SATA model)
SATA has receivers and drivers to be connected to Tx+/- and Rx+/-. Serial data signal defines the signal names of
I/O connector pin and signal name.
Inputs
Input High Voltage
Input Low Voltage
2.0 V min
–0.8 V max.
Outputs:
Output High Voltage
Output Low Voltage
2.4 V min.
0.5 V max.
No.
Plug Connector pin definition Signal I/O
S1 GND 2nd mate Gnd
S2 A+ Differential signal A from Phy RX+ Input
S3 A-
RX- Input
Signal S4 Gnd 2nd mate Gnd
S5 B- Differential signal B from Phy TX- Output
S6 B+
TX+ Output
S7 Gnd 2nd mate Gnd
Key and spacing separate signal and power
segments
P1 V33 3.3V power 3.3V
P2 V33 3.3V power 3.3V
P3 V33 3.3V power, pre-charge, 2nd Mate 3.3V
P4 Gnd 1st mate Gnd
P5 Gnd 2nd mate Gnd
P6 Gnd 2nd mate Gnd
P7 V5 5V power,pre-charge,2nd Mate 5V
P8 V5 5V power 5V
Power P9 V5 5V power 5V
P10 Gnd 2nd mate Gnd
P11 Reserved
This pin can be used for LED activity.
It is controlled by firmware.
Reserve
P12 Gnd 1st mate Gnd
P13 V12 12V power,pre-chage,2nd mate V12
P14 V12 12V power V12
P15 V12 12V power V12
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